The Black Slime Ghosts which appear in Ghostbusters: The Video Game (Realistic Versions), Ghostbusters: The Video Game (Stylized Versions), and Ghostbusters: The Video Game (Stylized Portable Versions). They are the ghostly members of Cult of Gozer who were reincarnated by the Black Slime. these guys can be very tough. the best way of killing them is to freeze them. than the use your Slime Blower to slime them to pieces.